CN104571403A

CN104571403A - Heat radiating module and locking device thereof

Info

Publication number: CN104571403A
Application number: CN201310492579.3A
Authority: CN
Inventors: 陈聪明; 林孟娴; 张耀廷
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2013-10-21
Filing date: 2013-10-21
Publication date: 2015-04-29

Abstract

The invention provides a heat radiating module which comprises a locking device, a heat radiator and a mainboard. The heat radiator comprises a baseboard, a penetrating hole is formed in the baseboard, a fixing hole is formed in the mainboard, the locking device comprises a buckling rod, an elastic element and a nut, the buckling rod comprises a column, a threaded portion formed by extending from the top end of the column, and a buckling portion formed by extending from the bottom of the column, the buckling portion comprises two retaining hooks which are opposite, the nut comprises a stud, a threaded hole is formed in one end of the stud, the elastic element sleeves the column, an internal thread of the nut and the threaded portion of the buckling rod are in screwed fit, the buckling portion of the buckling rod penetrates the penetrating hole of the baseboard and the fixing hole of the mainboard, the retaining hooks are retained to the mainboard, and the top end of the elastic element is connected to the stud of the nut in an abutted manner while the bottom end of the same is connected to the baseboard of the heat radiator in an abutted manner. The invention further provides the locking device. Compared with the prior art, the locking device of the heat radiating module has the advantage that the nut is rotated to change extending and contracting length of the elastic element so as to change buckling force.

Description

Heat radiation module and locked instrument thereof

Technical field

The present invention relates to a kind of heat radiation module and locked instrument thereof.

Background technology

Be fixed in mainboard at existing heating radiator usually through screwed lock, because fastening power is fixing, the electronic component loose contact of radiating element and mainboard can be caused, cannot good heat radiating.

Summary of the invention

Be necessary to provide a kind of adjustable fasten the locked instrument of power and apply the heat radiation module of this locked instrument.

A kind of locked instrument, comprise a button bar, a flexible member and a nut, button bar comprises the clamping part that threaded portion and that a cylinder, is formed at cylinder one end is formed at the other end of this cylinder, nut establishes a threaded hole that can match with the threaded portion of button bar, flexible member be sheathed on button bar cylinder and between nut and clamping part.

A kind of heat radiation module, comprise a heating radiator, a mainboard and a locked instrument as above, this heating radiator comprises a base plate, this base plate offers some perforation, mainboard offers the fixed orifice of the perforation of some corresponding base plates, the clamping part of this locked instrument terminates in mainboard through the perforation of base plate and the fixed orifice backstop of mainboard successively, the two ends of flexible member are connected to the base plate of nut and heating radiator respectively, rotate this nut and adjust this nut and the spacing with base plate, to adjust the collapsing length of flexible member, and then adjustment locked instrument is to the fastening power of heating radiator.

Compare prior art, the nut of the locked instrument of above-mentioned heat radiation module can match with the threaded portion of button bar, and then the collapsing length changing flexible member changes the fastening power to heating radiator.

Accompanying drawing explanation

Fig. 1 is that the present invention is dispelled the heat the three-dimensional exploded view of module.

Fig. 2 is the reverse three-dimensional exploded view of locked instrument in Fig. 1.

Fig. 3 is the three-dimensional assembly diagram of Fig. 1.

Fig. 4 is the reverse view of Fig. 3.

Fig. 5 is the cut-open view along V-V direction in Fig. 3.

Main element symbol description

Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Embodiment

Please refer to Fig. 1, the dispel the heat better embodiment of module of the present invention comprises heating radiator 20, mainboard 50 and some locked instruments 100.

Some fins 24 that this heating radiator 20 comprises a base plate 22 and upwards extends from this base plate 22.This base plate 22 offers a perforation 26 respectively in corner.

Some fixed orifices 52 are offered in the perforation 26 of the corresponding heating radiator of mainboard 50 20.

See also Fig. 2, each locked instrument 100 comprises flexible member 30 and the nut 40 that a button bar 10, is sheathed on button bar 10.

This button bar 10 comprises the threaded portion 14 that a cylinder 12, is formed at this cylinder 12 one end and the clamping part 16 extended to form from the other end of this cylinder 12.This clamping part 16 comprises the block hook 161 at two intervals.Each block hook 161 comprises one to deviate from threaded portion 14 dip plane 1612 towards the stopping surface 1611 and of threaded portion 14.

In the present embodiment, flexible member 30 is a spring, its internal diameter slightly larger than the external diameter of this cylinder 12 to be suitable for being sheathed on cylinder 12.The external diameter of flexible member 30 is greater than the internal diameter of perforation 26.In other embodiments, flexible member 30 can be and can produce elastic deformation under external force, removes the element that external force can recover deformation, as shell fragment etc.

The diameter that nut 40 comprises a columniform stud 42 and is arranged at this stud 42 one end is greater than the columniform head 44 of stud 42.The end face of one end away from head 44 of this stud 42 inwardly offers a threaded hole 421 vertically, and this threaded hole 421 can coordinate with the threaded portion 14 of button bar 10.And the external diameter of this stud 42 is greater than the internal diameter of flexible member 30.

During assembling locked instrument 100, this flexible member 30 is sheathed on this cylinder 12.The threaded hole 421 of nut 40 screws with the threaded portion 14 of button bar 10, and the two ends of this flexible member 30 are connected to the stopping surface 1611 of stud 42 and clamping part 16 respectively.

Please refer to Fig. 3 to Fig. 5, during assembling heat dissipation device combination, the head 44 of the nut 40 of pressing lock fixing apparatus 100, make clamping part 16 successively through the corresponding perforation 26 of this heating radiator 20 and the corresponding fixed orifice 52 of mainboard 50, until stopping surface 1611 block of two block hooks 161 of clamping part 16 is in the bottom of mainboard 50, the two ends of each flexible member 30 are connected to the base plate 22 of corresponding nut 40 and this heating radiator 20 respectively and by compression deformation, so far this heating radiator 20 is fixed on this mainboard 50.

Rotate this nut 40, the spacing of adjustment stud 42 and base plate 22, the decrement of adjustable flexible member 30, and then this locked instrument 100 of adjustable is to the fastening power of this heating radiator 20.

Claims

1. a locked instrument, comprise a button bar, a flexible member and a nut, button bar comprises the clamping part that threaded portion and that a cylinder, is formed at cylinder one end is formed at the other end of this cylinder, nut establishes a threaded hole that can match with the threaded portion of button bar, flexible member be sheathed on button bar cylinder and between nut and clamping part.

2. locked instrument as claimed in claim 1, is characterized in that: clamping part comprises the block hook at two intervals, and each block hook comprises a stopping surface near threaded portion and away from the dip plane of threaded portion, and one end of flexible member is connected to the stopping surface of block hook.

3. locked instrument as claimed in claim 1, it is characterized in that: nut comprises the head that a stud and is formed at stud one end, threaded hole is opened in one end deviating from head of stud.

4. locked instrument as claimed in claim 1, is characterized in that: flexible member is a spring.

5. a heat radiation module, comprise a heating radiator, a mainboard and a locked instrument as claimed in claim 1, this heating radiator comprises a base plate, this base plate offers some perforation, mainboard offers the fixed orifice of the perforation of some corresponding base plates, the clamping part of this locked instrument terminates in mainboard through the perforation of base plate and the fixed orifice backstop of mainboard successively, the two ends of flexible member are connected to the base plate of nut and heating radiator respectively, rotate the spacing that this nut adjusts this nut and base plate, to adjust the collapsing length of flexible member, and then adjustment locked instrument is to the fastening power of heating radiator.

6. dispel the heat module as claimed in claim 5, it is characterized in that: clamping part comprises the block hook at two intervals, and each block hook comprises a stopping surface near threaded portion and away from the dip plane of threaded portion, and the equal block of stopping surface of two block hooks is in mainboard.

7. dispel the heat module as claimed in claim 5, it is characterized in that: nut comprises the head that a stud and is formed at stud one end, and threaded hole is opened in one end deviating from head of stud.

8. dispel the heat module as claimed in claim 5, it is characterized in that: flexible member is a spring, and the external diameter of spring is greater than the internal diameter of the perforation of heating radiator.